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mmc: sdhci: Fix tuning reset after exhausting the maximum number of loops

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If the driver has exhausted the maximum number of tuning loops, then fixed
sampling is used. To do that both SDHCI_CTRL_TUNED_CLK and
SDHCI_CTRL_EXEC_TUNING must be reset to 0, but only SDHCI_CTRL_TUNED_CLK
was being reset. Reset SDHCI_CTRL_EXEC_TUNING to 0 also.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter 2016-12-02 15:14:21 +02:00 committed by Ulf Hansson
parent 61e53bd004
commit 5ef5203b95
1 changed files with 1 additions and 0 deletions
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drivers/mmc/host/sdhci.c
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@ -2134,6 +2134,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
*/ */
if (tuning_loop_counter < 0) { if (tuning_loop_counter < 0) {
ctrl &= ~SDHCI_CTRL_TUNED_CLK; ctrl &= ~SDHCI_CTRL_TUNED_CLK;
ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
} }
if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) { if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) {